MIL-DTL-38999 Series III Connectors

Amphenol MIL-DTL-38999 Series III Circular Connectors deliver high-performance capabilities for demanding general duty and harsh environment applications. Developed to operate under severe high temperature and vibration, the connectors feature rapid coupling via a Tri-Start™ thread, shell-to-shell, or metal-to-metal bottoming. Amphenol designed these connectors to provide an EMI shielding capability of 65dB minimum at 10GHz and corrosion resistance of up to 500-hour salt spray exposure. Amphenol MIL-DTL-38999 Series III Circular Connectors offer a rated current range of 1.5A to 5A, a temperature range of -65°C to +175°C, minimum insulation resistance of 5000MΩ, and a dielectric withstanding voltage of 1000VRMS. These rugged and highly reliable circular connectors are ideally suited for industrial, commercial air, military, C4ISR, and space applications.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Number of Positions
Contact Gender
Insert Arrangement
Product
Shell Size
Shell Style
MIL Type
Termination Style
Mounting Style
Current Rating
Contact Plating
Contact Material
Series
Packaging
Amphenol Aerospace Circular MIL Spec Connector 56P RCPT SZ 25 PIN PNL MNT
Datasheet
2In Stock
Min.: 1
Mult.: 1
No
56 Position Pin (Male) 25-04 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 7P SIZE 25 STRAIGHT JAM NUT PIN
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
99 Position Pin (Male) 25-07 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A, 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P STRT CABLE PLUG PIN CRIMP SZ 11
Datasheet
4In Stock
Min.: 1
Mult.: 1
5 Position Pin (Male) 11-05 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 18P ST PLUG SOC SZ 15
Datasheet
3In Stock
Min.: 1
Mult.: 1
18 Position Socket (Female) 15-18 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 12P SOC PLUT
Datasheet
6In Stock
Min.: 1
Mult.: 1
12 Position Socket (Female) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 55P SIZE 17 STRAIGHT PLUG PIN
Datasheet
5In Stock
Min.: 1
Mult.: 1
55 Position Pin (Male) 17-35 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 8P SIZE 17 STRAIGHT PLUG SOCKET
Datasheet
8In Stock
Min.: 1
Mult.: 1
8 Position Without Socket Contacts 17-08 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 4P SZ 21 PLUG CBL MNT SKT
Datasheet
4In Stock
Min.: 1
Mult.: 1
4 Position Socket (Female) 21-75 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 61P PLG SZ 25 SKT CBL MNT
Datasheet
11In Stock
Min.: 1
Mult.: 1
61 Position Socket (Female) 25-61 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 2P ST PLUG SOC SZ 11
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
2 Position Socket (Female) 11-02 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy Composite 38999 Each
Amphenol Aerospace Circular MIL Spec Connector 32P SZ 19 PLUG CBL MNT SKT
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
32 Position Socket (Female) 19-32 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 55P ST PLUG PIN SZ 23
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
55 Position Pin (Male) 23-55 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 56P PLG SZ 25 SKT CBL MNT
Datasheet
5In Stock
Min.: 1
Mult.: 1
No
56 Position Socket (Female) 25-04 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector SHELL 9 6 PIN PLUG;CRIMP TERM
Datasheet
913Expected 06/03/2026
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 09-35 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum


Amphenol Aerospace Circular MIL Spec Connector MS/TRI-START ALUMINUM
Datasheet
1.045On Order
Min.: 1
Mult.: 1
No
3 Position Socket (Female) 09-98 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 2P ST PLUG PIN SZ 11
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
2 Position Without Pin Contacts 11-02 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 5P ST PLUG SOC SZ 11
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
5 Position Socket (Female) 11-05 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 5P SZ 11 PLUG CBL MNT SKT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
5 Position Socket (Female) 11-05 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 4P SIZE 13 STRAIGHT PLUG PIN
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
4 Position Pin (Male) 13-04 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 19P SIZE 15 PIN CABLE MOUNT PLUG
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
19 Position Pin (Male) 15-19 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 37P SZ 15 PLUG CBL MNT PIN
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
37 Position Pin (Male) 15-35 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 37P ST PLUG SOC SZ 15
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
37 Position Socket (Female) 15-35 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P ST PLUG PIN SZ 15
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
5 Position Without Pin Contacts 15-05 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 12P ST PLUG SOC SZ 15
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
12 Position Socket (Female) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector PLG STR MTL OCD 1597SN
Datasheet
149On Order
Min.: 1
Mult.: 1
No
12 Position Socket (Female) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum